Method for enhancing servo field function of embedded servo system

A servo system, implantable technology, applied in the direction of recording/reproducing/deleting methods, aligning tracks on a magnetic disk, configuring/installing recording heads, etc., can solve problems such as increasing the amount of data

Inactive Publication Date: 2004-06-16
YITUO SCI & TECH CO LTD SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] Since the embedded servo pattern records the actual state of data storage on the disk it resides on, adding AGC subfields that allow for low power operation will limit the amount of data stored on the disk

Method used

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  • Method for enhancing servo field function of embedded servo system
  • Method for enhancing servo field function of embedded servo system
  • Method for enhancing servo field function of embedded servo system

Examples

Experimental program
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Embodiment Construction

[0039] Referring to FIG. 2, the disk drive 200 includes an embedded servo system. The disk drive circuit needs to cooperate with the implanted servo system to respond to the write signal of the disk controller, and write data from the standard interface connector 215 to the disk 201 .

[0040] Disk drive 200 also includes at least one disk 201 . Each magnetic disk has at least one magnetic surface and a large number of concentric circular tracks, such as tracks 221-i and 221-(i+1), for accessing information through the read-write head 202 . Corresponding tracks on different magnetic surfaces are approximately arranged in a cylindrical shape.

[0041] Each track is divided into a plurality of sectors SCT-01, SCT-02, . Each servo domain area 220-j (j=1, 2, . . . , n) includes m servo domains, where m is the number of concentric circular tracks on the disk.

[0042] Please refer to image 3 , unlike the existing implantable servo system where each data area includes a read-wr...

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Abstract

The invention is a method to strengthen servo domain function of embedded servo system, adding automatic gain control data in the servo domain, which does not increase operating time, and including: regulate information in the servo domain, to produce the information about minimum automatic gain control standard precision; use at least a sub-domain in the servo domain, the sub-domain used in a servo domain function and the automatic gain control, wherein the sub-domain is a circular one and a radial one.

Description

【Technical field】 [0001] The invention relates to a method for enhancing the servo domain function of an implanted servo system. 【Background technique】 [0002] A typical disk drive includes at least one disk that is coated on both sides with magnetic media. The disk(s) are mounted on a shaft passing through its center so that the disk rotates at a predetermined speed, typically 3600 rpm. Typically, one read / write head is fitted to each surface of the disk. As the disk spins, the read / write head hovers a small distance above the surface of the disk. At the same time, when the disk drive sends out a read or write signal, the read-write head reads or writes data at a predetermined position on the disk. [0003] Because the data on the disk is stored on concentric circular tracks by the read-write head, and the corresponding tracks on different magnetic surfaces are arranged in a cylindrical shape, the arrangement structure of the data on the disk facilitates the operation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/09G11B5/596G11B21/10
Inventor 史蒂芬・考文
Owner YITUO SCI & TECH CO LTD SHENZHEN
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